Home / 8,123.24-11,209.24-4,719.72

Finding the Fourth Proportional to 8,123.24, 11,209.24 and 4,719.72

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Solution

The fourth proportional to 8,123.24, 11,209.24 and 4,719.72 is: 6,512.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.24 : 11,209.24 = 4,719.72 : x
  2. Step 2: Convert to fraction form
    8,123.24/11,209.24 = 4,719.72/x
  3. Step 3: Cross multiply
    8,123.24x = 11,209.24 × 4,719.72
  4. Step 4: Simplify right side
    8,123.24x = 52,904,474.21
  5. Step 5: Solve for x
    x = 52,904,474.21/8,123.24
  6. Step 6: Final answer
    x = 6,512.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.